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946 Uppsatser om Concrete composition - Sida 39 av 64
Lagring av kyla med horisontella markvärmeväxlare för kylning av koncepthus i Mellanöstern
Norconsult AB has developed a solarhousing concept, a house designed for the warm climate in the Middle East andwith large quantities of solar panels installed. The cooling system for the house was designed in an earlier report, the purpose of this thesis is to investigate the possibility of short and long term storage of thermal energy via an underground energy storage volume.Two different designs of the storage and three different filling materials have been integrated into a model to simulate different cases. The first design consisted of pipes installed in the ground, without insulation. The second design consisted of an insulated concrete box installed to prevent thermal energy from the surrounding soil to flow towards the lower temperature regions within the storage. The three different filling materials were dry saudi sand, water saturated saudi sand and the filling material used by the client for energy storage in Sweden.The results from the simulations show that neither of the designs, regardless of the filling material, managed to extract enough thermal energy from the house to the ground to uphold the demands of indoor climate.
Informal settlements : the world's invisible communities
Since the beginning of the new millennium the world?s population has increased exponentially fast. The majority of this growth has been accommodated for by urbanization of the developing world. This in turn has lead to a wide spread of informal settlements. Thus, areas of urban slums, that have risen illegally on the marginal lands within and at the periphery of the formal city.
A Strategic Decision-Making Model for Supply Chain - A Void to be Filled
Many researchers emphasize the increasing strategic importance of supply chain management, but there is still a lack of concrete guidance for managers faced with strategic decisions in supply chain. Within decision-making theories, the rational decision-making model is the most commonly used. This because of its suitable foundation, enabling a structure to the complex decision process. The rational decision-making model is today not developed to include the aspects of strategic decision-making made in supply chain. The purpose of this research is to adjust a structured rational decision-making model, making it applicable for strategic decision-making in supply chain.
Fyra elevers upplevelser kring grupparbeten
The purpose of this study is to investigate four students in grades six by interviewing them. It will find out how they personally perceive their own learning in group work and why they work in groups. In my investigation, I will rely on these two questions:How do my subjects reflect on their own learning during group work?Why do my subjects think that they work in groups?For my study, I selected four students from the same school, two girls and two boys, who are 11 to 12 years old. The interviews were individual because I wanted to get a deeper view of how students perceive their own learning in groups and why they are working with a group of other students.
Stadsklimat/Gatuklimat :
The purpose of this paper is to understand the climate of the street and how it can be modified to better meet the needs of the street and the user groups. At the same time the conditions of the street and its surroundings also has to be taken into account. To accomplish this it is necessary to have a broad knowledge of the climate conditions in the city. Therefore an overview of the climate elements and how these are modified in the built-up areas are given. The part of the paper which deals with the city climate has a global approach to be able to give an as complete picture as possible.
Biblioteksrummets förmedlande roll en studie av Malmö stadsbiblioteks ungdomsavdelning
This master thesis in library- and information science is about the intermediary function of the library room from an environment-psychological point of view. Young people are a group in society who often reduce their visits to the library when growing up. There are lots of reasons for this maybe more attractive activities occur outside the library doors, making the young choose not to use the library. But if the library interior is attractive in itself, and has a welcoming atmosphere, there might be a change and the young people may well choose to pay the library a visit. What is important to young people how do they want their library room to look? Our purpose is to see how the physical environment affects young people in libraries.
Konstruktion av kolfiberarmerad motorcykelram
The project description is to draw an extension or annex to the existing Nationalmuseum building from 1866.The annex is designed to complement Nationalmusems activities and contain internal and public functions. Artentering the building must not be crossed by public visitors. Art and staff must be able to seamlessly move betweenthe extension and the main building. The new building includes a public study room for scholars working withthe collection of art on paper, workshops, conservation studios, art spaces and warehouses. Additionally, theannex is designed to host a large number of office spaces.With the renovation of Nationalmuseum they intend to open up the today built in south atrium.
100 % svenskt foder till mjölkkor :
As for today, a large quantity of protein feeds is imported from other countries to be used in
the Swedish dairy production. The main import is soya from Brazil. The soya-production in
Brazil results in negative consequences for the natural environment in the area, and the long
transport of the feeds requires a lot of energy. The organic dairy production in Sweden is,
with the highest probability going to be forced to use 100 % organic feed to the cows in the
year 2005, due to new EU-rules. These are some of the causes why there are reasons to look
closer at the possibilities to feed Swedish cows with only Swedish feeds.
In this study, I have looked at the KRAV-rules for organic feeding, where the goal is feeding
with only KRAV-approved feeds.
SJ:s hantering av fordonsfel- analys ur ett helhetsperspektiv
The project description is to draw an extension or annex to the existing Nationalmuseum building from 1866.The annex is designed to complement Nationalmusems activities and contain internal and public functions. Artentering the building must not be crossed by public visitors. Art and staff must be able to seamlessly move betweenthe extension and the main building. The new building includes a public study room for scholars working withthe collection of art on paper, workshops, conservation studios, art spaces and warehouses. Additionally, theannex is designed to host a large number of office spaces.With the renovation of Nationalmuseum they intend to open up the today built in south atrium.
Kompositörers och koreografers idévärld - aspekter på konstnärliga processer
Composers? and choreographers? world of ideas. Aspects of the art process. This inquiry is about the artistic process when composing contemporary music and choreographing modern dance. I have studied three composers? and three choreographers? thoughts about the artistic process and the work that leads to a piece of music or a dance.
Huddinge kommun ur ett genusperspektiv : Bild- och textanalys av Huddinge kommuns personaltidning
The aim of this paper is to critically examine and analyze how the informal performance about masculinities and femininity are being expressed and produced by the text and pictures in Huddinge kommuns internal magazine for the staff working within the public administration. The concrete questions are:By which patterns constructs the performance of gender in Huddinge kommuns internal magazine for the staff working within the public administration?Are the femininity and masculinities being expressed in a static way or have it changed in Huddinge kommuns internal magazine for the staff working within the public administration throw the examined years 1985, 1995 and 2006?A quantitative and qualitative method is used. The point of departure is organization theory in a gender perspective. With the gender organization theory we examine the structures, leadership, symbolics and changes through the examined years.
En såndär som alltid gör fel : En litteraturstudie om upplevelser och hantering av stämpling av individer med en ADHD-diagnos.
This study intends to investigate the experiences of labeling on people with a ADHD diagnos and how individuals with an ADHD diagnosis handles labeling. In today's society normality is is something that is pursued and the individuals that do not meet the normality are perceived as deviant. The study is conducted with a qualitative method and is based on three autobiographies where individuals with an ADHD diagnosis writes about their life. The study deals with postmodern constructivism which is explaining that the normalization and deviances are constantly changing, both depending on time and context. The results and analysis of this study are presented under three main headings that are related to the study's research questions.
Förutsättningarna för ett parallellt generation IV system vid svensk nybyggnation av kärnkraft.
A new build in the Swedish nuclear power system would entail increased re-quirements for the proposed repository, which is adapted after the reactors of today. With a fast reactor, capable of burning nuclear waste, operating in parallel with the light water reactors, the increased requirements on the repository could be reduced.In this thesis, simulations of a light water reactor and a fast reactor have been performed by using the Monte Carlo code Serpent to investigate the changes in the fuel inventory. The light water reactor in the study is a boiling water reactor and the fast reactor of the type sodium-cooled fast reactor and they have been used for three different operation scenarios.By studying the fuel composition and the results from the simulations of the three scenarios conclusions can be drawn. Conclusions regarding the change of the fuel inventory and decay heat in Clab as well as the interim storage facility and in the repository. Depending on the operation alternative the changes dif-fered significantly and especially regarding the mass of burned actinides for different fuels in the fast reactor.The lowest increase of fuel assemblies was meet when using 50 years old fuel with 20MWd/kg U burnout and 2,0 % enrichment for start up of the fast reactor and 30 years old fuel assemblies with 50MWd/kg U burnout and 4,7 % enrichment for the further operation of the reactor.The increase of the number of fuel assemblies was 3174, which is equivalent to 641tons of heavy metal.
Barns rättighet är en pedagogs skyldighet : En studie i Kenya om pedagogers syn på barns inflytande i undervisningen
The purpose of my study was to explore how preschool educators in Kenya look at children's influence on teaching. Researchers have argued that the formal educational system in Kenya today is a remnant of its days as a colony when people were expected to blindly follow rules without questioning them. I have used qualitative interviews as a method in order get the most concrete understanding of educators? views on the influence from children. The educators I interviewed were based at a school I visited in Kenya.
Förbättrad Kravhantering med hjälp av Lösningsinriktad Pedagogik
Abstract The purpose of writing this thesis was to improve methods during requirements engineering phase. Usercentred system engineering has some problem areas, which are examined and verified to create a new guideline for developers. This guideline tends to make requirements engineering more effective and help developers create more concrete requirements. It is not uncommon that system development projects ends up with unsatisfied users or delay in deliveries. The reasons are different kinds of communication problems between users and developers during verification of requirements.